Re: Small docstring improvements

[Eli Zaretskii]

> From: Philipp Stephani <address@hidden>
> Date: Sat, 20 Aug 2016 15:59:54 +0000
> Cc: address@hidden
> 
>  If we want to give advice like that, IMO we should also give such an
>  advice for when BUFFER is non-nil.
> 
> OK, then I'd append ", and to count the number of characters
> in some other BUFFER, use
> `(with-current-buffer BUFFER (- (point-max) (point-min)))'.". 

Fine with me, thanks.